baber/WOPTO huggingface dataset:
Patent GB-300226-A (GB)
Title: A new or improved device for automatically controlling and/or correcting
IPC: B29C35/02
Filed: 1927-08-09
Abstract: 300,226. Liverpool Rubber Co., Ltd., Amende, F., and Griffiths, E. D. Aug. 9,1927. Thermostats.-In a device for regulating temperature according to a predetermined timetemperature curve embodied on a rotatable member. which operates electric circuits controlling the temperature, the rotatable member is rotated by means adapted to be started and/or stopped by the pressure in the apparatus. In the application to a vulcanizing pan, copper plates a are embedded in insulating material b so that a narrow insulating path b<1> represents the predetermined time-temperature curve which should be followed by a temperature indicator c. The disc b is adapted to be rotated by clockwork. More than one insulating path such as b<1> may be embodied in one disc to control more than one vulcanizing apparatus, or to control temperature and pressure in the same apparatus. Each plate a is connected to a. plate i on the under side of the disc, which is in contact with a spring j in the circuit of an electromagnet h, the armature of which controls a relief valve k in a compressed fluid system which controls the heating and exhaust valves of the apparatus. The temperature indicating needle c is adapted to complete the circuit of one of the electromagnets h if it leaves the insulating path b<1>, and the corresponding temperature control valve is operated until the needle c leaves the conducting plate a and returns to the path b<1>. A diaphragm housed in a casing l is subject to the pressure in the apparatus, and at a predetermined pressure, mechanism n is actuated to start the clockwork which rotates the disc b. A reverse movement of the diaphragm may be employed to brake and stop the clockwork.
Patent GB-532251-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B1/48
Filed: 1939-07-19
Abstract: 532,251. Dyes. SOC. OF CHEMICAL INDUSTRY IN BASLE. July 19, 1939, Nos. 20960 and 20961. Convention dates, July 20, 1938 and Dec. 5, 1938. [Class 2 (iii)] Vat dyestuffs are prepared by reacting 1 mol. of a compound of the formula in which R stands for an anthraquinone radical and x and z stand for halogenatoms or amino-groups which are in ortho-position to y, which stands for an alkyl or methoxy group, with 2 mols. of a 4-benzoylaminoanthraquinone containing in the 1-position an amino group or halogen atom, or with 1 mol. each of two such compounds: The reaction is conducted at raised temperatures, advantageously in the presence of a solvent or diluent, e.g. nitrobenzene, naphthalene or dichlorbenzene and advantageously in the presence of an acid-binding agent, e.g. an alkali carbonate or sodium acetate, and of an additional substance to promote the reaction, e.g. copper or a copper compound. The vat-dyestuffs so obtained may be treated with an acid or alkaline condensing agent such as sulphuric acid or an aluminium halide, if required in combination with or in the presence of an alkali chloride such as sodium chloride, or ammonia, an organic base such as pyridine, or nitrobenzene, an acid chloride such as benzoyl chloride, or an acid cyanide such as benzylcyanide, or an alcoholate or a caustic alkali; the products may be purified by oxidation, e.g. with hypochlorite or acid alkali nitrite, or by vatting or by recrystallization, and may be converted into leuco derivatives, e.g. leucosulphuric acid esters. The products may be used for dying and printing cotton and regenerated cellulose in grey shades. In examples: (1) 1:3 - dichloro - 2 - methyl - anthraquinone is condensed with 1:4-monobenzoyl-diaminoanthraquinone (2 mols.) and the product is further condensed using aluminium chloride in pyridine, (2) 1:3 - dibromo - 2 - methoxy - anthraquinone is condensed with 1:4-monobenzoyl diaminoanthraquinone, and (3) cotton is dyed fast grey shades by the condensation product of 1:3- dichloro-2-methyl-anthraquinone and 1:4-monobenzoyl-diamino-anthraquinone from a hydrosulphite vat. Specification 381,920 is referred to.
Patent GB-1298659-A (GB)
Title: Process for the preparation of a structured fibre-bonded material and a fibre-bonded material prepared according to the process
IPC: D04H1/485
Filed: 1971-04-19
Abstract: 1298659 Laminates BREVETEAM SA 19 April 1971 [20 Feb 1970] 20973/71 Heading B5N [Also in Division D1] A laminate is formed by laying a fleece 2 of staple or continuous polyamide, polypropylene polyacrylic or polyester fibres on a foraminous carrier film or net 1 of polyvinyl chloride, polyamide, polyethylene, or ethylene 1 vinyl acetate copolymer and needling the fleece through the holes. The fabric is heated by hot air or steam or by a high frequency capacitor to at least the plasticizing temperature of the carrier. The hot fabric is passed between embossing roll 9, which has circular ribs (12, Fig. 2c, not shown) crossing ridges or protruding spots, and backing roll 10. In one embodiment roll 9 is heated and roll 10 is cooled, in another, both are heated and the preheater deleted, in a third embodiment roll 10 is heated to a temperature sufficient to melt the fibres needled through to the underside of the carrier. The fabric is cooled by blowing cold air at 13 or by cooling roller 10. Temperature ranges and fibre lengths and deniers are specified. The fibres are preferably orientated transverse to the machine direction alternatively a plurality of fibre layers may be used, with the fibres orientated transversely in one layer and longitudinally in another, or the layers crosslopped giving diagonal orientation of the fibres. In the latter embodiment the fabric is embossed with longitudinal and transverse lines. The carrier may comprise a lower net of viscous incompletely thermoplastic material and an upper net of thermoplastic material which is softened to adhere the fibres. A coating of adhesive may be applied to the lower side of the fabric which is then laminated to a (preferably slit) bonded fibre fleece or foam layer. The product may be stretched.
Patent GB-1504703-A (GB)
Title: Recuperators
IPC: F28F9/06
Filed: 1974-05-13
Abstract: 1504703 Pipe joints BRITISH STEEL CORP 12 May 1975 [13 May 1974] 20998/74 Heading F2G [Also in Division F4] In a heat recuperator (see Division F4) comprising at least one ceramic tube 10 extending horizontally between opposite walls of a gas duct, each end of the tube is sealed into a tapering hole 40 formed in the duct wall 12 of the recuperator, the sealing means comprising a plurality of rings, such as 35, 36 and 37 of a compressed fibrous refractory material such as alumino-silicate ceramic fibre, to which rings a sealing pressure in the axial direction of the tube is applied by means such as a locking ring 34 co-operating with the recuperator wall (or, as shown, with a ceramic insert 30 in said wall) by means of a bayonet fitting arrangement 32, 33. A thrust washer 41 and a buffer ring 42 are intended to prevent damage by abrasion when the locking ring 34 is being inserted and twisted into the bayonet fitting.
Patent GB-1328925-A (GB)
Title: Doping of silicon crystals
IPC: C30B31/02
Filed: 1971-04-19
Abstract: 1328925 Semi-conductor devices SIEMENS AG 19 April 1971 [16 Feb 1970] 21030/71 Heading H1K A semi-conductor device is made from a mono - crystalline silicon wafer by epitaxially depositing on its surface a layer of opposite conductivity type, etching at least two windows in a silica layer formed thereon, producing in the windows a layer of boron or phosphorus doped silica by oxidizing in pure oxygen mixed with oxide of boron or phosphorus in such a way that the underlying silicon is unaffected by the diffusion, covering this layer with pyrolytic silica, re-exposing the silica beneath one of the windows while retaining the oxide in another, and then diffusing through the open window from the gas phase a dopant of opposite conductivity determining type to the boron or phosphorus while the wafer is heated to cause diffusion into the epitaxial layer from the doped layer in the other window. To form a JUGFET based on a P-type wafer, three parallel windows are formed in the silica layer and boron doped silica formed in them. After coating with pyrolytic oxide the outer windows are reopened by etching and the wafer heated in gaseous phosphine or phosphorus pentoxide to provide N+ source and drain regions, while boron diffuses from the coating in the central window to form a P-type gate region. Contacts are then provided conventionally.
Patent GB-167504-A (GB)
Title: Improvements in apparatus for the treatment of sewage water
IPC: C02F3/12
Filed: 1921-08-08
Abstract: 167,504. Lamy, V. Aug. 7, 1920, [Convention date]. Aerating. - Apparatus for the treatment of sewage or residual liquids by an aerobic fermentation process comprises a tank B with central supply-tube A, a cylinder D, and an outer baffle of cylindrical or cylindro-conical shape. At the top of the tube A is a tromp blowing-device C, so that the liquid enters the tank mixed with air, and under the influence of the air rises up the cylinder D. Sludge passing round the funnelshaped bottom E of the cylinder D is mixed with the rising liquid. After downward passage within the outer-baffle, clear liquid separates from the sludge and leaves through one or more outlets G.
Patent GB-1032097-A (GB)
Title: Sewing method and apparatus
IPC: D05B27/02
Filed: 1964-05-21
Abstract: 1,032,097. Sewing machines. SOC RHODIACETA. May 21,1964 [May 22,1963], No. 21110/64. Heading D1G. In producing a stitched seam, the tension in the previously-formed stitch is maintained substantially constant while the current stitch is being formed. To achieve this result, the feed dog 10 is arranged to engage the work, in line with the line of stitching, at a distance less than one stitch downstream of the needle aperture 12 in the throat plate. The previously-formed stitch 13 is thus prevented from stretching while the current stitch 11 is being formed and set. It is stated that this arrangement eliminates puckering of the work when elastic thread is used. The feed dog 10 receives feed-advance motion from a cam 25, Fig. 3 not shown, on a rotary shaft 22 via a linkage 27, 29, and receives feed-lift motion from a cam 26 on shaft 22 via a linkage 28, 30
Patent GB-371707-A (GB)
Title: Improvements in or relating to tubular elements for use in oil stills, steam superheaters and the like
IPC: F22B37/16
Filed: 1931-07-24
Abstract: 371,707. Return bends'. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Superheater Co. ; 60, East 42nd Street, New York, U.S.A.) July 24, 1931, No. 21198. [Class 99 (ii).] In oil stills, superheaters, &c., of the kind comprising tubes 10, Fig. 3, connected by return bends, each bend is formed with an inspection and cleaning opening 12 which is normally closed by a tapered plug 16 forced therein by a screw 26. The opening is flared outwardly to form a conical seat 14 for the plug and is reinforced by an annular surrounding member 18, projecting arms 20 of the latter being formed with opposed fingers 22 to bear against a removable cross-bar 24 which carries the screw 26. The member 18 is secured firmly to the wall of the opening by forming the bore of a portion 27 thereof of smaller diameter than the remaining bore so as to define a shoulder 28 against which the said wall is flared. If desired the plug may be provided with a cylindrical extension at its inner end to fit and fill the reduced end of the opening 12, the end face 17, Fig. 6, of the plug being recessed to provide a smooth path for the flowing fluid. In a modification, Fig. 5, the outer end only of the opening is flared, and the member 18 has a bore sufficiently large to enable it to pass over the flare 14 and is rebated to form a recess 36 in which are fitted segments 38 having coned faces adapted to contact with the outer face of the flare ; the screw 26 engages directly with the member 18. Specification 155,623, [Class 99 (ii), Pipes, tubes, &c.], is referred to.
Patent GB-614591-A (GB)
Title: Improvements in and relating to wells
IPC: E21B43/10
Filed: 1946-07-16
Abstract: 614,591. Wells. BRITISH OILFIELD EQUIPMENT CO., Ltd., and MATHESON, N. July 16, 1946, No. 21242. [Class 85] A number of tubular elements a, which rest one upon another, are supported in a well boring by a sealing plug f attached by a sleeve j, a tubular member i and a socket k to a hollow central pipe e carried by a drilling rig above ground. Liquid cement is pumped through the tube e and a non- return valve h contained in the member i and fills the space between elements a and the sides of the bore hole. When the cement has hardened, the tube c is disconnected from the socket k and removed, the plug being then trepanned along the lines n and the plug core removed. The elements a are spaced from the pipe e by spiders m and between adjacent spigots c and sockets b are placed sealing rings d. The elements a may be of concrete, steel or plastic material.
Patent GB-802912-A (GB)
Title: Device for measurement of x-ray intensities
Inventor: MAQUESTIAU MARCEL
IPC: G01T1/20
Filed: 1955-07-22
Abstract: 802,912. X-ray intensity measuring. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. July 22, 1955 [July 23, 1954], No. 21251/55. Class 40 (3). [Also in Group XL (a)] Device for measuring low X-ray intensities comprises a photo-multiplier tube 1, having a photo-cathode 10, secondary-emissive electrodes 11-19 and a collector electrode 20, all enclosed in a sheath 2 of opaque material such as steel, and having on its end wall a coating 7 of fluorescent material, having a long period of decay, covered by a thin aluminium film 6 sealed to an apertured diaphragm 3 in which slides a shutter 4 having apertures 5 of different width. The diaphragm 3 and shutter 4 are preferably of lead. An insulating layer may be interposed between the film 6 and the coating 7. The cathode of the tube 1 is placed very close to the coating 7, e.g. on the end wall of the tube carrying the coating 7. A condenser 22 and variable resistance 21 are connected across the output terminals of the tube 1 and to an adjustable resistance 24 for smoothing the statistical fluctuations of the tube output and the effect due to the use of pulsating current in the X-ray generator. The continuous component of the background noise of the tube is compensated by a direct current voltage 23 connected across the adjustable resistance 24 in opposition to the output voltage of the tube. The electrodes 10- 19 are maintained at progressively higher voltages by the resistances 9 in series with the battery 8, and the collector electrode 20 is maintained at a higher voltage than the electrode 19 by a battery 8<SP>1</SP> connected to the electrode 20 through the variable resistance 21. The X-ray intensities are measured by the voltage measuring and/or recording device 25. In operation a specimen to be examined, such as a chemical in a test tube, is interposed in the path of the rays from an X-ray tube which are directed towards the opening in the diaphragm 3, the width of the beam of diffracted X-rays being varied by interposing the appropriately sized aperture 5 of the shutter 4.
Patent GB-233583-A (GB)
Title: Improvements in timing devices for centrifugal separators
IPC: B04B13/00
Filed: 1924-09-09
Abstract: 233,583. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 9, 1924. Driving.-In a centrifugal extractor the motor controller and the brake-operating mechanism are latched by means subject to control by a timing mechanism; a single movement operates the controller, relieves the brakes, and then latches the controller and brake. The basket spindle 3 has a pulley 4 for rotation by a belt frcrn the electric motor 7. The shoe 11 on the brake lever 9 engages the pulley 4 upon depression of the treadle 12. The release treadle 13 is attached to a bellcrank lever 15. the other end of which is forked to engage a pin on the arm 18 secured to the rocking shaft 19. An arm 21 on this shaft carries a rod 24 provided with a ball 25 engaging a socket 26 on the upper face of the treadle 12. The motor circuit is controlled by a normally open switch in the casing 28; the switch is operated by the stem 30, which is engaged by a swivel block on the arm 18. The end of the arm 18 is linked to the rod 35, which is notched to receive the tooth 59 of the latching member 60 under the action of the spring 61. This latch can be released by a tripping member 62 when it is moved by the lug 65 on the dial plate 42 which is loosely mounted on the shaft 40. The motor 7 drives the shaft 40 by means of the flexible shaft 48 and worm gearing. The inner end of the dial hub 41 forms a clutch face to engage a companion member 46 fixed to the shaft. The dial can be set so that the machine makes a predetermined number of rotations before the motor circuit is broken. When the dial is set, the treadle 13 is depressed to close the motor switch and to release the brake. The rod 35 is raised and latched by the member 60. The machine then runs until the lug 65 on the dial engages the tripping member 62; this releases the latch, breaks the motor circuit. and applies the brakes. The machine can be stopped at any time by manual operation of the tripping member.
Patent GB-213473-A (GB)
Abstract: 213,473. Park Foundry Co., Ltd., and Camp, R. M. June 9, 1923. Grates; supports for articles to be heated.-A trivet h is carried by supporting legs f pivoted on the fall-bar c, so that when the latter is lowered the two form an extended trivet supported by the legs f, as shown in dotted lines. In the raised position the legs f are supported by projections d<3> on the side cheeks.
Patent GB-1298542-A (GB)
Title: Development of silver halide photographic materials
IPC: G03C5/305
Filed: 1971-04-19
Abstract: 1298542 Developing silver halide photographic materials FUJI PHOTO FILM CO Ltd 19 April 1971 [4 Feb 1970] 21347/71 Heading G2C A light-sensitive silver halide photographic material is developed in the presence of a thiazole compound represented by the following general formula: where R represents alkyl, aralkyl or aryl and R' and R" each represents H, or allkyl or they may together form a ring, in the examples the ring is benzene, which may be substituted with an alkyl group, and of an imidazole compound (the term 'compound' includes imidazole itself) represented by the following general formula: wherein R 1 , R 2 , R 3  and R 4  each represents H, alkyl, hydroxyalkyl or alkenyl. The thiazole and imidazole compounds may be incorporated in an emulsion layer of the photographic material, or alternatively they may be in an aqueous developer solution, which contains as the developing agent at least one of 1-phenyl-3-pyrazolidone and N-methyl-p-aminophenol sulphate.
Patent GB-422037-A (GB)
Title: Bathing costumes and drawers
IPC: A41D7/00
Filed: 1934-07-21
Abstract: 422,037. Bathing costumes. NUSSENBLATT, A., (trading as ENKA WIRKWARENFABRIK A. NUSSENBLATT), 35, Seidengasse, Vienna. July 21, 1934, No. 21379. Convention date, July 31, 1933. [Class 77] The crotch part of a bathing costume is triple layered and this may consist as shown of an outside layer 3 of sheeps wool, a middle waterproof layer 4 and an inner layer 5 of wool-like texture.
Patent GB-221814-A (GB)
Title: An improved drum for centrifuging apparatus
IPC: D01D7/02
Filed: 1924-09-10
Abstract: 221,814. Sindl, O. Sept. 11, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Density separators. -A centrifuge drum is composed of a wound tube T of paper or fibrous material in combination with artificial resin products and is secured to the base P by screws. The tube may be lined with celluloid, hardened rubber or other plastic composition.
Patent GB-517141-A (GB)
Title: Improvements in machines for grinding the edges of tiles and similar articles in plate form
IPC: B24B7/12
Filed: 1938-07-19
Abstract: 517,141. Grinding tiles &c. BRITISH & INTERNATIONAL FLOORING CO., Ltd. (Goetzl, K. F.). July 19, 1938, No. 21434. [Class 60] A machine for grinding the edge faces of tiles and similar articles of plate form comprises an endless conveyer chain 1 guided over rollers 2, 3 and carrying the tiles, &c. 5 so that their edges pass across the faces of two grinding-rings 4, one at each side of the chain, and spaced apart at a distance equal to the final width of the tiles. The rings 4 are inclined to give the desired angle of the tile edges to the flat-face thereof, and also may be inclined so as to operate with parts on one side only of the axis of the ring. The tiles are held by claws 6 mounted on the pivot pins of the chain, and pressed against the ends of the tile by springs 7.
Patent GB-1316981-A (GB)
Title: Apparatus for washing red blood cells
IPC: G01N33/483
Filed: 1970-05-05
Abstract: 1316981 Liquid / liquid contact; settling apparatus N M HIRSCH 5 May 1970 [2 June 1969] 21509/70 Headings BID and B1F Apparatus for washing red blood cells, to remove preselected substances therefrom by employing a wash solution which counteracts the net electric repulsive force between these cells, comprises: (a) a plurality of flow-through fluid mixing devices, each having an input and output side; (b) a like plurality of flowthrough gravitational settling devices, each having an input and output side, the mixing and settling devices being interconnected, with the output side of a first mixing device connected to the input side of a first settling device, the output side of the first settling device connected to the input side of a second mixing device, and so on, to form an openended wash system; (c) means for introducing successive discrete aliquots of red blood cells, which are to be washed, into the wash system at the input side of the first mixing device, and for introducing larger volumes of the wash solution into the wash system at the input side of this mixing device and at the input sides of all other mixing devices; (d) means for decanting from the wash system the supernatant present at the output side of each settling device whereby those red blood cells which appear at the output side of the last settling device in the wash system have experienced a number of separate washing operations; (e) the wash system being enclosed (apart from the input, output, means for introducing wash solution and means for decanting supernatant) whereby the means for introducing the aliquots of red blood cells causes the successive aliquots to be moved through the whole wash system to the output thereof. The use of a peristaltic pump to introduce the discrete aliquots of red blood cells is described. In the drawing, which shows a suitable mixing device and settling device, the blood aliquot 122 enters the expanded chamber 123 where it meets wash solution pumped upwards continuously through tubing 125. The diluted blood aliquots 126, with air bubble separators, pass down the settling coil 120, which is oriented so that its axis 121 is co-linear with the local gravitational field direction. Aggregated red blood cells, after they are settled, are removed, together with air bubble separators, through conduit 127. Supernatant material is decanted off at 128 with the aid of a slight suction.